When I go to write a post, the author is set to another user, and my name is not on the list, except for posts as me already an author. This first happened when the two other authors registered (originally as “authors,” now as “contributors”).
I have exactly this same problem. In fact, this is the second time I’ve hit it, on two separate WordPress installations. See http://zahambie.com/blog/2008/06/30/ownership-issues/ for details of the first time, which was fixed by (bizarrely) using only the visual editor.
This current incarnation of the bug is not proving as easily beaten.
Does anyone out there have any idea what’s happening and how to fix it.